CN116588843A - Novel differential reel group of speed reducer - Google Patents

Novel differential reel group of speed reducer Download PDF

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Publication number
CN116588843A
CN116588843A CN202310638114.8A CN202310638114A CN116588843A CN 116588843 A CN116588843 A CN 116588843A CN 202310638114 A CN202310638114 A CN 202310638114A CN 116588843 A CN116588843 A CN 116588843A
Authority
CN
China
Prior art keywords
gear
drum
winding drum
brake
gear ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310638114.8A
Other languages
Chinese (zh)
Inventor
郭志恒
戚其松
董青
闵朝发
贾璇斌
苏友成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiyuan University of Science and Technology
Original Assignee
Taiyuan University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taiyuan University of Science and Technology filed Critical Taiyuan University of Science and Technology
Priority to CN202310638114.8A priority Critical patent/CN116588843A/en
Publication of CN116588843A publication Critical patent/CN116588843A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
    • B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • B66D5/30—Operating devices electrical

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

The invention relates to the field of mechanical transmission, and discloses a novel design scheme of a differential drum set of a speed reducer. The input end gear 1 is connected with a motor; the reversing gear set 2 is meshed with the input end gear 1 and the inner gear ring 3; the inner gear ring 3 is fixedly connected with the outer gear ring 4; the reversing gear set 6 is meshed with the outer gear ring 4 and the inner gear ring 7; the inner gear ring 7 is fixedly connected with the winding drum 11; the outer gear ring 4 is fixedly connected with the planet carrier 6; the drum 12 is connected to the reducer via the planet carrier 5 inside the drum 11, the drive shaft 9 and the brake 14 inside the drum 12. When the brake is energized, the spool 12 rotates with the brake 15. The invention fully utilizes the characteristic of gear engagement, has novel design, compact structure and strong variability, is beneficial to pushing the development of the winding drum group, expands the application range and is beneficial to pushing the development of the mechanical transmission field.

Description

Novel differential reel group of speed reducer
Technical Field
The invention relates to the field of mechanical transmission, in particular to a novel speed reducer differential drum set, which mainly introduces the working principle of the speed reducer differential drum set.
Background
The moment of the power device and the rotation of the transmission winding drum are transmitted to the speed reducing system of the lifting mechanism or the traction mechanism through a special connecting device to drive the winding drum to rotate together, the driving force provided by the driving device is transmitted to the steel wire rope, and the rotary motion of the driving device is converted into the required linear motion. The spool, power unit, spool shaft, spool end bearing support, etc. constitute a spool set. However, conventional reel sets often rely on rotation of a single reel to wind the wire rope, are single in arrangement, and have certain limitations. Based on the problems, the winding drum set with two winding drums is invented on the premise of keeping the transmission ratio of the equal speed reducer, the lifting hook set is lifted and lowered through the reverse differential rotation of the two winding drums, the design is novel, the structure is compact, the variability is strong, the development of the winding drum set is facilitated, and the application range is enlarged.
Disclosure of Invention
The invention aims to provide a design scheme of a novel differential drum set of a speed reducer, wherein a drum which rotates in a differential and reverse direction is arranged on the basis of an original single drum of the drum set, so that a single motor and the speed reducer control the steering and the rotating speeds of the two drums, the lifting hook set can be effectively controlled to ascend and descend, the speed of the primary drum can be reduced or increased according to the winding mode of a steel wire rope, and the lifting hook set can be better controlled to ascend and descend. Has better transmission function, novel design and strong variability.
The technical scheme is as follows: a differential drum set of a speed reducer comprises a motor, a speed reducer, a drum and a brake. The method is characterized in that: the speed reducer consists of six parts, namely an input end gear 1, a reversing gear set 2, an annular gear 3, an outer gear ring 4, a reversing gear set 6 and an annular gear 7. The winding drum is a winding drum 11 and a winding drum 12, the winding drum 11 is directly connected with a speed reducer, and the winding drum 12 is connected with the speed reducer through a planet carrier 5 in the winding drum 11, a transmission shaft 9 and a brake 14 in the winding drum 12. The brake 15 is connected with the transmission shaft 9 through a key 16, brakes the winding drum 12 through the friction ring 14, the friction ring 14 is fixedly connected with the winding drum 12, and the brake 15 is in contact with the electric brush 19 through the connecting shaft 17 and the connecting frame 18 to electrify; when the brake is electrified, the brake drum is opened and brakes the winding drum 12, at the moment, the brake 15 keeps a braking state through the current transmitted by the electric brush 19, and the winding drum 12 rotates together with the brake 15; when the brake is de-energized, the brake drum contracts, at which point the brake alone rotates and the spool 12 stops rotating. When the winding drum group works, and at the moment, the brake is electrified and braked, the motor provides torque for the input end gear 1, the reversing gear set 2 is fixed and only rotates and is meshed with the input end gear 1 and the annular gear 3 respectively, so that the input end gear 1 and the annular gear 3 have the same instantaneous linear speed at the meshing point of the reversing gear set 2; the inner gear ring 3 is fixedly connected with the outer gear ring 4, and the rotating speeds are the same; the reversing gear set 6 is fixed and rotates only and is meshed with the outer gear ring 4 and the inner gear ring 7 respectively, so that the outer gear ring 4 and the inner gear ring 7 have the same instantaneous linear velocity at the meshing point of the gear set 6; the ring gear 7 is fixedly connected with the drum 11, so that the rotational speed of the drum 11 is the same as the rotational speed of the ring gear 7. The planet carrier 5 is arranged on the outer gear ring 4 inside the winding drum 11; one end of the transmission shaft 9 is connected and matched with the planet carrier 5 through a key, and the other end penetrates through the winding drum 11 and is connected and matched with the winding drum 12 through a brake 15, so that the rotation of the winding drum 12 is realized, and the rotation speed is the same as that of the outer gear ring 4; when the brake is de-energized, the brake 15 contracts and no power is input to the spool 12, thus preventing rotation.
Compared with the traditional winding drum set, the invention has the beneficial effects that:
1. the two reels: compared with the traditional single winding drum, the winding drum 11 and the winding drum 12 can adjust the ascending and descending speeds of the goods according to the winding mode of the steel wire rope under the condition of equal size due to different rotating speeds and different steering directions of the winding drum 11 and the winding drum 12 when the brake is electrified and braked, so that more steps of speed reduction or speed increase are realized. See below for details in the detailed description.
2. The power source of the planet carrier 5 is the rotation of the outer ring gear 4, in preference to the conventional planetary gear.
3. The connection mode of the two reels and the speed reducer can be freely selected.
4. The availability of the spool set is greatly enhanced by the freedom to control whether the spool 12 is rotating via the brake 14.
5. The power source of the winding drum 12 is rotation of the brake 15 in a braking state, and the design scheme takes precedence over the power input of the traditional winding drum.
6. Novel design, strong variability and wider application range. Drawings
For a clearer description of embodiments of the invention or of the solutions of the prior art, the drawings that are needed in the embodiments will be briefly described, it being evident that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a novel differential drum set of a speed reducer;
FIG. 2 is a cross-sectional view of the novel differential drum set;
FIG. 3 is an exploded view of the novel differential drum set;
FIG. 4 is an exploded view of the interior of the novel speed reducer differential spool piece set spool 12;
reference numerals illustrate: in the figure 1, an input end gear; 2. a reversing gear set; 3. an inner gear ring; 4. an outer ring gear; 5. a planet carrier; 6. a reversing gear set; 7. an inner gear ring; 8. a key; 9. a transmission shaft; 10. a bearing; 11. a reel; 12. a reel; 13. a bearing; 14. a friction ring; 15. a brake; 16. a key; 17. a connecting shaft; 18. a connecting frame; 19. a brush.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention aims to provide a differential drum set of a speed reducer, which provides a novel design method for dividing the input end gear 1 for the current crane drum set fieldCircle diameter, reversing gear set 2 gear pitch circle diameter +.>The pitch circle diameter of the ring gear 3 +.>Pitch circle diameter of outer gear ring 4 +.>Reversing gear set 6 gear pitch diameter +.>The pitch circle diameter of the ring gear 7 +.>. In this case, more operating space is available. The novel spool set of the present invention is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, 2, 3 and 4, a novel winding drum set is provided according to an embodiment of the present invention, and the novel winding drum set mainly includes a speed reducer, a winding drum and various components for connection.
The rotational speed of the input gear 1Reversing gear set 2 gear speed ∈ ->Rotational speed of the ring gear 3 ∈ ->The rotational speed of the outer gear ring 4 ∈ ->The rotational speed of the planet carrier 5 +.>Reversing gear set 6 gear speed->The rotational speed of the ring gear 7 ∈>The rotational speed of the drive shaft 9 ∈ ->The rotational speed of the spool 11 ∈ ->The rotational speed of the spool 12->。
The input end gear 1, the reversing gear set 2, the annular gear 3, the outer annular gear 4, the planet carrier 5, the reversing gear set 6 and the annular gear 7 all rotate along the central shafts of the input end gear 1, the reversing gear set 2, the annular gear 3 and the reversing gear set 6 and do not revolve.
The reversing gear set 2 is in direct contact with the input end gear 1 and the annular gear 3 to form a meshing relationship, and the input end gear 1 and the annular gear 3 are opposite in steering; the reversing gear set 2 is in direct contact with the outer ring gear 4 and the inner ring gear 7 in meshed relationship, and the outer ring gear 4 and the inner ring gear 7 are in opposite directions.
The outer gear ring 7 is connected with the winding drum 11, and the rotation speed of the outer gear ring 7 is the same as the rotation speed of the winding drum 11
The outer gear ring 4 is matched with the planet carrier 5, and the transmission shaft 9 is respectively matched with the planet carrier 5 and the winding drum 12. The rotation speeds of the outer gear ring 4, the planet carrier 5, the transmission shaft 9 and the winding drum 12 are the same.
Working principle: when the brake is de-energized, only the spool 11 rotates. When the brake is electrified and braked, the motor provides power for the speed reducer through the input end gear 1, and the rotating speed of the input end gear 1 is the same as that of the speed reducerThe rotation linear speed on the dividing circle is. Since the reversing gear set 2 is respectively meshed with the input gear 1 and the annular gear 3, the rotating speed of the reversing gear set 2And the rotation linear speed on the dividing circle is opposite to the rotation direction of the input end gear 1The method comprises the steps of carrying out a first treatment on the surface of the The rotation linear speed on the indexing circle of the inner gear ring 3 isThe rotation speed isThe steering is opposite to the input end gear 1 and the same as the steering of the reversing gear set 2; the outer gear ring 4 is fixedly connected with the inner gear ring 3, so the rotation speed of the outer gear ring 4And the steering is opposite to the input end gear 1, the rotation linear speed on the dividing circle isThe method comprises the steps of carrying out a first treatment on the surface of the The planet carrier 5 is connected to the inner gear ring 3 and the outer gear ring 4, so that the rotation speed of the planet carrier 5And the steering is opposite to the input gear 1. Since the reversing gear set 6 is in meshed relationship with the outer ring gear 4 and the inner ring gear 7, respectively, the reversing gear set 6 indexes a circleLinear speed of rotation atThe method comprises the steps of carrying out a first treatment on the surface of the Rotational linear velocity on the pitch circle of the ring gear 7Rotational speed ofAnd the steering is the same as the input gear 1. Since the winding drum 11 is fixedly connected with the inner gear ring 7, the rotation speed of the winding drum 11And the steering is the same as the input gear 1. Since the spool 12 is journaled with the planet carrier 5, the rotational speed of the spool 12And the steering is opposite to the input gear 1. The rotation of the spool 11 and the spool 12 is opposite and the rotation speed is the same<，. The winding drum 11 and the winding drum 12 can be fixedly connected and wound by two ends of a long enough steel wire rope respectively, and if the two ends of the steel wire rope are wound on the two winding drums in the same direction, the lifting and descending speeds of the goods can be reduced according to the rotation speed difference of the two winding drums when the goods are lifted or descended due to the opposite rotation directions of the two winding drums; if the two ends of the steel wire rope are wound on the two reels in opposite directions, the lifting and descending speeds of cargoes can be increased.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. A novel differential drum set of a speed reducer comprises a motor, a speed reducer, a drum and a brake. The speed reducer comprises an input end gear 1, a reversing gear set 2, an annular gear 3, an outer annular gear 4, a reversing gear set 6 and an annular gear 7, and is characterized in that the input end gear 1 is directly connected with an output shaft of a motor, and the annular gear 3 and the outer annular gear 4 are matched with a planet carrier 5 as a whole. The winding drum comprises a winding drum 11 and a winding drum 12, the rotating speeds of the winding drum 11 and the winding drum 12 are different, and the rotating directions are opposite. When the brake is electrified, the brake drum is opened and brakes the winding drum 12, at the moment, the brake 15 keeps a braking state through the current transmitted by the electric brush 19, and the winding drum 12 rotates together with the brake 15; when the brake is de-energized, the brake drum contracts, at which point the brake alone rotates and the spool 12 stops rotating.
2. The novel differential drum set of the speed reducer according to claim 1, wherein the inner gear ring 7 is directly fixedly connected with the drum 11, and the planet carrier 5 is matched with the drum 12 through the transmission shaft 9.
3. The differential drum according to claims 1 and 2, characterized in that the reducer is divided into two parts. The first part comprises an input end gear 1, a reversing gear set 2, an inner gear ring 3, an outer gear ring 4 and a planet carrier 5, and is used for transmitting power to a winding drum 12; the second part comprises a reversing gear set 6, an inner gear ring 7 for transmitting power to the reel 11.
4. According to claim 1, the reversing gear set 2 is externally meshed with the input gear 1, internally meshed with the inner gear ring 3, and the reversing gear set 6 is externally meshed with the outer gear ring 4 and internally meshed with the inner gear ring 7.
5. According to claim 1, the input gear 1, the reversing gear set 2, the annular gear 3, the outer annular gear 4, the reversing gear set 6 and the annular gear 7 are all fixed on respective central shafts and only rotate, the rotating speed of the winding drum 11 is the same as that of the annular gear 7, and the rotating speed of the winding drum 12 is the same as that of the annular gear 3 and the outer annular gear 4.
6. According to claim 1, the winding drum 11 and the winding drum 12 can be connected with the lifting hook group by a long enough mode that the wire rope can be freely replaced to realize faster lifting and lowering or slower lifting and lowering of the lifting hook under the condition of the same rotating speed of the motor (the specific connection mode is shown in the specification of the invention).
7. According to claim 1, when the brake is electrified and braked, the first-stage speed reduction is realized through the transmission of the gear 1, the reversing gear set 2, the inner gear ring 3 and the outer gear ring 4And transferred to the spool 12; the transmission of the inner gear ring 3, the outer gear ring 4, the reversing gear set 6 and the inner gear ring 7 realizes two-stage speed reductionAnd transferred to the reel 11; the first-stage speed reduction and the second-stage speed reduction realize the rotation speed difference of the two reels, and at the same time, the third-stage speed reduction is realized according to the differential transmission of the reels 11 and 12The method comprises the steps of carrying out a first treatment on the surface of the Thus can realize the total gear ratio。
8. According to claim 1 and claim 6, the invention allows the rotation of the reel 12 to be determined at the discretion of the user, by means of the brake 15 when a faster or slower lifting speed is required, by a single reel rotation or by a co-rotation of the two reels.
CN202310638114.8A 2023-06-01 2023-06-01 Novel differential reel group of speed reducer Pending CN116588843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310638114.8A CN116588843A (en) 2023-06-01 2023-06-01 Novel differential reel group of speed reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310638114.8A CN116588843A (en) 2023-06-01 2023-06-01 Novel differential reel group of speed reducer

Publications (1)

Publication Number Publication Date
CN116588843A true CN116588843A (en) 2023-08-15

Family

ID=87600649

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310638114.8A Pending CN116588843A (en) 2023-06-01 2023-06-01 Novel differential reel group of speed reducer

Country Status (1)

Country Link
CN (1) CN116588843A (en)

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